The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 17, 2002
Filed:
Jun. 22, 2000
Applicant:
Inventor:
Keiji Fuse, Osaka, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 2/6067 ; B23K 2/638 ; G02B 5/18 ;
U.S. Cl.
CPC ...
B23K 2/6067 ; B23K 2/638 ; G02B 5/18 ;
Abstract
A laser hole boring apparatus comprising a galvanomirror beam scanning system, a DOE beam diffraction system and a selecting device for the two systems optionally. The DOE system bores many holes simultaneously on printed circuit boards or packages by converting a laser beam into two dimensional diffraction beams and converging the diffraction beams by an f sin &thgr; lens into spots on the object (board, package). The galvanomirror system bores many holes sequentially on printed circuit boards or packages by scanning a pulse laser beam in two dimensions and converging the scanned beam by an f sin &thgr; lens into a spot on the object.